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DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES (Schedule of Derivative Instruments in Statement of Financial Position, Fair Value and Summary of Fair Value of Foreign Currency Forward Contracts) (Details) - USD ($) $ in Thousands | Nov. 30, 2017 | Aug. 31, 2017
--- | --- | ---
Derivative [Line Items] |  |  |
Derivative Asset, Noncurrent |  | $ 3,278 | $ 2,547
Designated as Hedging Instrument [Member] |  |  |
Derivative [Line Items] |  |  |
Derivative Asset, Noncurrent |  | 2,932 | 1,865
Net Tax Effect |  | (1,099) | (735)
Total Net OCI |  | 1,833 | 1,130
Fair Value, Inputs, Level 2 [Member] | Not Designated as Hedging Instrument [Member] | Recurring [Member] | Fair Value Hedging [Member] |  |  |
Derivative [Line Items] |  |  |
Total Net OCI | [1] | 71 |
Interest Rate Swap [Member] | Other Non-current Assets [Member] | Designated as Hedging Instrument [Member] |  |  |
Derivative [Line Items] |  |  |
Derivative Asset, Noncurrent |  | 764 |
Net Tax Effect |  | (272) |
Total Net OCI |  | 492 |
Interest Rate Swap [Member] | Other Long-Term Liability [Member] | Designated as Hedging Instrument [Member] |  |  |
Derivative [Line Items] |  |  |
Derivative Liability, Noncurrent |  | (4) | (231)
Net Tax Effect |  | (3) | 80
Total Net OCI |  | (7) | (151)
Forward Foreign Exchange Contract 1 [Member] | Fair Value, Inputs, Level 2 [Member] | Other Current Assets [Member] | Not Designated as Hedging Instrument [Member] | Recurring [Member] | Fair Value Hedging [Member] |  |  |
Derivative [Line Items] |  |  |
Total Net OCI |  | 71 |
Cross Currency Interest Rate Swaps [Member] | Other Non-current Assets [Member] | Designated as Hedging Instrument [Member] |  |  |
Derivative [Line Items] |  |  |
Derivative Asset, Noncurrent |  | 2,514 | 2,547
Net Tax Effect |  | (938) | (950)
Total Net OCI |  | 1,576 | 1,597
Cross Currency Interest Rate Swaps [Member] | Other Long-Term Liability [Member] | Designated as Hedging Instrument [Member] |  |  |
Derivative [Line Items] |  |  |
Derivative Liability, Noncurrent |  | (342) | (451)
Net Tax Effect |  | 114 | 135
Total Net OCI |  | $ (228) | $ (316)
[1] | The fair value of these financial assets and liabilities measured and recorded using Level 2 inputs, which are inputs other than quoted prices in active markets that are either directly or indirectly observable.

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